Pennon Group Plc provides water and wastewater services for household and non-household customers in the United Kingdom. The company operates through two segments, Water and Non-Household Retail. It provides its services in Cornwall, Devon, parts of Dorset and Somerset, Hampshire, Wiltshire, and Great Britain. The company serves 4.24 million customers. Pennon Group Plc was incorporated in 1989 and is based in Exeter, the United Kingdom.